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includes a series of cross sections which provide comparisons of the pre-mining <br />ground surface with the proposed post-mining elevations. <br />D. With the PR-6 application, WFC has compiled a detailed backfilling sequence for the <br />remainder of the mine area. The plan is graphically illustrated on Map 2.05.3(3)-1-2, <br />which correlates with mass volumes tabulated in Attachment 2.05.4(2)-7. <br />Overburden generated from excavation of the first box cut was stockpiled at the <br />southeastern corner of the Mine 2 permit area, south of the support facilities. This <br />stockpile will be used to offset deficits in backfill material that would otherwise occur <br />in the final series of cuts at the western limit of the permit area. <br />E. At the request of the Morgan's, effective May 2010, all unconsolidated "Bench 1" <br />overburden existing on the Morgan property will be salvaged and replaced on Morgan <br />property. It will not be used as backfi_ll on lands owned by others. <br />XI. Reve etation <br />The proposed revegetation plan is designed for the post-mining land uses of irrigated <br />pasture, cropland-irrigated alfalfa hay and dryland pasture. All revegetation plans are <br />discussed in Section 2.05.4 (2)(e) of the permit. <br />A. Introduced Species <br />The Division proposes to approve the use of introduced species in the reclamation <br />seed mix. The applicant has submitted information that shows that the introduced <br />species are desirable and necessary to achieve the approved post-mining land use, and <br />are not poisonous or noxious (4.15.2). In PR-6, WFC proposed several changes to <br />seed mix numbers 2, 3, 5, 6, and 7. <br />Seed mixes number 2 and 3 are temporary seed mixes. Mix #2 is for areas less than <br />one year until the permanent mix will be planted and Mix #3 is for longer term <br />temporary plantings such as topsoil stockpiles. Introduced species in these mixes will <br />facilitate site stabilization and provide organic matter when incorporated into the <br />topsoil prior to permanent seeding. <br />Seed mix numbers 5 and 6 are for the reclaimed irrigated pastureland; the mix is <br />determined by moisture availability. All species are in these mixes are introduced <br />and were selected as beneficial for grazing purposes as discussed in Section <br />2.05.4(2)(e) Subsection 4.3. The irrigated pasture mixes are seeded in the spring, <br />along with a companion crop of oats or barley. <br />Seed mix number 7 is for the cropland - irrigated alfalfa hay. A companion crop of <br />triticale or an alternative winter annual grain will be seeded along with the alfalfa. <br />Several alternative varieties of alfalfa are approved for Seed Mix #7, with the specific <br />variety to be planted in any particular year to be based on seed availability and <br />landowner preference. The alfalfa varieties were selected after consultation with the <br />49